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reactos.org Operating Systems Open Source Software Development

Front Page | ReactOS Project

ReactOS is a free, opensource reimplementation of windows

ReactOS is a free and open-source operating system designed to be binary-compatible with application software and device drivers made for Microsoft Windows NT versions. It aims to provide a free, open-source alternative to Windows, offering a similar user interface and functionality. ReactOS is primarily written in C and is developed by a global community of contributors. The project is still in the alpha stage, but it has made significant progress in implementing Windows API and ABI compatibility.

TrustScore Level

Technology Software Development
Unique Visits

135000

4500 / day

Total Views

150000

5000 / day

Visit Duration, avg.

00:05:30

3.2 page per visit

Bounce Rate

40%

  • Domain Rating

  • Domain Authority

  • Citation Level

Founded in

1996

Supported Languages

English, etc

Website Key Features

Windows Compatibility

Aims to be binary-compatible with Windows applications and drivers, allowing users to run Windows software without modification.

Open Source

The entire project is open source, allowing for transparency, community contributions, and free distribution.

Lightweight

Designed to be lightweight and efficient, making it suitable for older hardware or systems with limited resources.

Active Development

Continuously developed by a global community, with regular updates and improvements.

Free Software

Completely free to use, modify, and distribute, with no licensing fees.

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Additional information

License

ReactOS is distributed under the GNU General Public License (GPL).

Development Status

Alpha. While ReactOS is not yet ready for production use, it has made significant progress towards its goals.

Community

The project is supported by a vibrant community of developers and users who contribute to its development, testing, and documentation.

Compatibility Layer

Includes a compatibility layer for running Windows applications, aiming for seamless integration and functionality.

Target Audience

Developers, IT professionals, and users looking for a free and open-source alternative to Windows with similar functionality.

HTTP headers

Security headers report is a very important part of user data protection. Learn more about http headers for reactos.org